Adjustable ventilator-frame.



v M. G. BUNNELL.

ADJUSTABLE VENTILATOR FRAME.

APISLIOATION FILED APR. 19, 1912.

Patented Nov. 11 1913.

2 SHEETS-SHEET 1.

M. G. BUNNELL.

ADJUSTABLE VENTILATOR FRAME.

APPLICATION FILED APR.19, 1912.

1,078,033, Patented Nov. 11, 1913.

2 SHEETS-SHEET 2.

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UNITED STATES PATENT OFFICE;

MORTON G. BUNNELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO FREDERICK C. AUSTIN, OF CHICAGO, ILLINOIS.

ADJUSTABLE VENTILATOR-FRAME.

Specification of Letters Patent.

Application filed April 19, 1912.

To all whom it may concern Be it known that I, MORTON Gr. BUNNELL, a citizen of the United States of America, and resident of Chicago, Cook county, Illinois, have invented a certain new and useful Improvement in Adjustable Ventilator- Frames, of which the following is a specification.

My invention relates to window ventilators of the kind in which the ventilating mechanism is carried in a rectangular frame adapted to be inserted in the window frame below the lower edge of the partially open lower sash.

Generally stated, the object of my invention is to provide a window ventilator frame having a novel and effective construction for the ends thereof, which facilitates the insertion and removal of the ventilator.

A special object is to provide a ventilator frame having end portions which rock or tilt about horizontal axes extending transversely of the frame to automatically adjust themselves to the sides of'the window frame, when the ventilator is inserted in place, and to permit one end of the frame to be raised when the ventilator is removed. a

It is also an object to provide certain details and features of construction tending to increase the general efliciency of a window ventilator frame of this particular character.

To these and other useful ends my invention consists in matters hereinafter set forth and claimed.

In the accompanying drawings Figure 1 is a side elevation of one end portion of a ventilator frame embodying the principles of my invention, showing the pivoted shoe thereof tilted to an angle. Fig. 2 is a similar view, in a smaller scale, showing the said shoe square with the frame. Fig. 3 is a section on line 3-3 in Fig. 2. Fig. 4 is a section on line 44 in Fig. 1. Fig.5 is afront elevation of the lower portion of a window, showing the inclined position of the ventilator frame, made possible by the provision of the pivoted shoes at opposite ends thereof, and which is necessary in removing and replacing the ventilator. Fig. 6 is a view similar to Fig. 5, but showing the ventilator frame in working position.

As thus illustrated, my invention comprises a rectangular frame A having an opening a therein for the ventilating mechanism. This frame has the end thereof provided with a lower bevel or incline a and a recess a 1n the lower edge thereof. The

shoe B has a pair of check plates 6 that embrace the end of the frame, and which engage the pivot bolt 6 by which the shoe is mounted on the frame. The lower edge of the shoe has a plate a that enters the recess a when the shoe tilts about its horizontal axis provided by the bolt 79 as shown in Fig. 1. A strip of felt 0 or similar material, is secured to the lower edge of the frame A, and extends continuously along the bottom of the plate a up the vertical edge of the shoe l3, and then along the upper edge of the la tter until it reaches the space bet-ween the two cheek plates 5. This strip of flexible felt or other material is, asshown, left loose or unattached where it crosses from the frame to the shoe, as shown at c, at the bottom, whereby it may buckle or bend downward to permit the angular tilting of the shoe. The frame A has a strip of felt 0 extending along the upper edge thereof. The other end of the frame A is provided with a similar shoe, except that the shoe in this case is turned up side down, being just the re-' verse or counterpart of the arrangement shown in Fig. 1. This one shoe is adapted to tilt in one direction, and the other, shoe is adapted to tilt in the other direction; consequently, the frame can be tilted up at one end and thus placed in the grooves in which the sash slides. Then, when the frame is lowered and brought to a horizontal position, the ends fit lightly against the window frame. Thus, also, the insertion and re moval of the ventilator are facilitated.

Figs. 5, 6 and 7 show a different form of my invention. In this case the cheek plates D are on the end of the frame E, and embrace the shoe F, which is pivoted on the said plates by means of a bolt G passing through the said plates and shoe. The plates D are cut oil at an angle at d, to permit the frame to be tilted up at this end and passed through the window. The recess a of the previous construction is omitted, but the felt H is the same as the felt C. Also, the lower corner of the frameE is out off to form an angle C that corresponds to the angle a of the previous construction. The upper edge of the frame E has a strip of felt I extending along the length thereof. With either form of'my invention, however, the ventila .tor can he tilted up at one end to permit removalor replacement thereof. Were the ends of the frame rigid and immovable, the frame could not be gotten into the'grooves in which the sash slides up and down. With the tilting shoes, however, permitting what in elfectis a shortening of the frame, the

ventilator can be inserted and removed very easily, and without removing or manually adjnsting anyp-a-rt of the construction. In other words, the pivoted shoes render the action automatic, so to speak, as the ends of the frame adjust themselves in firm contact with the window frame when the frame is lowered toa horizontal position. Then when the frametis raised at one end, to

- remove the ventilator, the shoes assume the lan 5 i What I claim as my invention is;

1. A window ventilator frame provided with means including a pivoted end portion for permitting the ventilator to be tilted up at one end thereof. while in the sash angle necessary for removal of the vent-igiooves of the window.

A window ventilathr frame provided \vitlinieans inclnding two pivoted end portioiis, for, perliiitting the ventilator to be tilted up at one end thereof ivhile in the sash grooves of the wind w.-

8, window vent lator frame .prov 1ded with means including a pivoted end portion for permitting the. ventilator to be tilted up at one end thereof while in the sash grooves of the window, the sa d frame having one I mner hereof out off at an angle to permit td tilt in one direction only, relative to said the said end portionto assume a position at an angle to. the frame.

. 4. A Window ventilator frame provided withmeans including twopivoted end por- 'tions' for permitting the ventilator to be tilted up at one end thereof whilein the sash grooves of the window, thesaid frame having two diametrically opposite corners thereof ctit off at angles to permit said end fr m ' 6. window ventilator frame provided waneans includi g two pivoted end portions for permitting the ventilator to be tilted up at one. end thereof in the sash grooves of the Window, each said end portion being free to tilt in one direction only,

--relative to said frame.

7, A window ventilator frame provided with means including a pivoted end ortion for permitting the ventilator to be ti ted up at one end thereof while in the sash grooves of the winoow, means for limiting the pivotal movement of said end portion, and a flexible strip extending along the edge of the frame and said end port-ion, said strip having an unattached portion adapted to he flexed when the ventilator is put in or taken out.

8. A window ventilator frame, provided with means including two pivoted end portions for permitting the ventilator to be tilted up at one end thereof while in the sash grooves of the window, a flexible strip extending from the lower edge of the frame to one end portion, said strip having an unattached portion adapted to be flexed when the ventilator is put in or taken out, and similar flexible strip extending along the upper edge of the frame to the other end portion, one end pf ea ch. end portion being free.

9. window i entilator frame provided with means inelnding a pivoted end portion for permitting the ventilator to be tilted up at one end thereof while in the sash grooves of the window, and a pair of cheek plates engaging the pivot for said endportion.

10. A window ventilator frame provided with meansi'ncluding two pivoted end portions for permitting the ventilator to be tilted up at one end thereof while in the sash grooves of the window, and a pair of cheek plates for each end portion, said plates being provided with bolts providing the pivots for said end portions.

11. A window ventilator frame provided with a self-adjustii'ig end portion therefor, inovably secured thereto, permitting insertion and removal thereof relative to the window, allowing one end of said frame to be raised above the other in the window, wit-hoiit changing the length thereof.

' 12. A window ventilator franie provided with self-adjusting engaging port-ions therefor, movably secured at the opposite ends thereof, allowing one end of said frame to beraised above the other in the window, without changing the length thereof. Signed by .me at Chicago, Illinois, this 12th day of April, 1912.

MORTON Gr. BUNNELL.

Witnesses:

A. Ttn'rn, E. H. CLEGG.

Copies of this patent may be obtained. for five cnts each, by addressing the Commissioner of Patents,

Washington, I). C. L 

